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u-boot/tools/easylogo/easylogo.c

456 lines
9.9 KiB

22 years ago
/*
** Easylogo TGA->header converter
** ==============================
** (C) 2000 by Paolo Scaffardi (arsenio@tin.it)
** AIRVENT SAM s.p.a - RIMINI(ITALY)
**
** This is still under construction!
*/
#include <getopt.h>
#include <stdbool.h>
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
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#pragma pack(1)
/*#define ENABLE_ASCII_BANNERS */
typedef struct {
unsigned char id;
unsigned char ColorMapType;
unsigned char ImageTypeCode;
unsigned short ColorMapOrigin;
unsigned short ColorMapLenght;
unsigned char ColorMapEntrySize;
unsigned short ImageXOrigin;
unsigned short ImageYOrigin;
unsigned short ImageWidth;
unsigned short ImageHeight;
unsigned char ImagePixelSize;
unsigned char ImageDescriptorByte;
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} tga_header_t;
typedef struct {
unsigned char r, g, b;
} rgb_t;
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typedef struct {
unsigned char b, g, r;
} bgr_t;
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typedef struct {
unsigned char Cb, y1, Cr, y2;
} yuyv_t;
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typedef struct {
void *data, *palette;
int width, height, pixels, bpp, pixel_size, size, palette_size, yuyv;
} image_t;
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void StringUpperCase (char *str)
{
int count = strlen (str);
char c;
while (count--) {
c = *str;
if ((c >= 'a') && (c <= 'z'))
*str = 'A' + (c - 'a');
str++;
}
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}
void StringLowerCase (char *str)
{
int count = strlen (str);
char c;
while (count--) {
c = *str;
if ((c >= 'A') && (c <= 'Z'))
*str = 'a' + (c - 'A');
str++;
}
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}
void pixel_rgb_to_yuyv (rgb_t * rgb_pixel, yuyv_t * yuyv_pixel)
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{
unsigned int pR, pG, pB;
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/* Transform (0-255) components to (0-100) */
pR = rgb_pixel->r * 100 / 255;
pG = rgb_pixel->g * 100 / 255;
pB = rgb_pixel->b * 100 / 255;
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/* Calculate YUV values (0-255) from RGB beetween 0-100 */
yuyv_pixel->y1 = yuyv_pixel->y2 = 209 * (pR + pG + pB) / 300 + 16;
yuyv_pixel->Cb = pB - (pR / 4) - (pG * 3 / 4) + 128;
yuyv_pixel->Cr = pR - (pG * 3 / 4) - (pB / 4) + 128;
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return;
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}
void printlogo_rgb (rgb_t * data, int w, int h)
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{
int x, y;
for (y = 0; y < h; y++) {
for (x = 0; x < w; x++, data++)
if ((data->r <
30) /*&&(data->g == 0)&&(data->b == 0) */ )
printf (" ");
else
printf ("X");
printf ("\n");
}
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}
void printlogo_yuyv (unsigned short *data, int w, int h)
{
int x, y;
for (y = 0; y < h; y++) {
for (x = 0; x < w; x++, data++)
if (*data == 0x1080) /* Because of inverted on i386! */
printf (" ");
else
printf ("X");
printf ("\n");
}
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}
static inline unsigned short le16_to_cpu (unsigned short val)
{
union {
unsigned char pval[2];
unsigned short val;
} swapped;
swapped.val = val;
return (swapped.pval[1] << 8) + swapped.pval[0];
}
int image_load_tga (image_t * image, char *filename)
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{
FILE *file;
tga_header_t header;
int i;
unsigned char app;
rgb_t *p;
if ((file = fopen (filename, "rb")) == NULL)
return -1;
fread (&header, sizeof (header), 1, file);
/* byte swap: tga is little endian, host is ??? */
header.ColorMapOrigin = le16_to_cpu (header.ColorMapOrigin);
header.ColorMapLenght = le16_to_cpu (header.ColorMapLenght);
header.ImageXOrigin = le16_to_cpu (header.ImageXOrigin);
header.ImageYOrigin = le16_to_cpu (header.ImageYOrigin);
header.ImageWidth = le16_to_cpu (header.ImageWidth);
header.ImageHeight = le16_to_cpu (header.ImageHeight);
image->width = header.ImageWidth;
image->height = header.ImageHeight;
switch (header.ImageTypeCode) {
case 2: /* Uncompressed RGB */
image->yuyv = 0;
image->palette_size = 0;
image->palette = NULL;
break;
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default:
printf ("Format not supported!\n");
return -1;
}
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image->bpp = header.ImagePixelSize;
image->pixel_size = ((image->bpp - 1) / 8) + 1;
image->pixels = image->width * image->height;
image->size = image->pixels * image->pixel_size;
image->data = malloc (image->size);
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if (image->bpp != 24) {
printf ("Bpp not supported: %d!\n", image->bpp);
return -1;
}
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fread (image->data, image->size, 1, file);
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/* Swapping R and B values */
p = image->data;
for (i = 0; i < image->pixels; i++, p++) {
app = p->r;
p->r = p->b;
p->b = app;
}
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/* Swapping image */
if (!(header.ImageDescriptorByte & 0x20)) {
unsigned char *temp = malloc (image->size);
int linesize = image->pixel_size * image->width;
void *dest = image->data,
*source = temp + image->size - linesize;
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printf ("S");
if (temp == NULL) {
printf ("Cannot alloc temp buffer!\n");
return -1;
}
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memcpy (temp, image->data, image->size);
for (i = 0; i < image->height;
i++, dest += linesize, source -= linesize)
memcpy (dest, source, linesize);
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free (temp);
}
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#ifdef ENABLE_ASCII_BANNERS
printlogo_rgb (image->data, image->width, image->height);
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#endif
fclose (file);
return 0;
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}
void image_free (image_t * image)
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{
free (image->data);
free (image->palette);
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}
int image_rgb_to_yuyv (image_t * rgb_image, image_t * yuyv_image)
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{
rgb_t *rgb_ptr = (rgb_t *) rgb_image->data;
yuyv_t yuyv;
unsigned short *dest;
int count = 0;
yuyv_image->pixel_size = 2;
yuyv_image->bpp = 16;
yuyv_image->yuyv = 1;
yuyv_image->width = rgb_image->width;
yuyv_image->height = rgb_image->height;
yuyv_image->pixels = yuyv_image->width * yuyv_image->height;
yuyv_image->size = yuyv_image->pixels * yuyv_image->pixel_size;
dest = (unsigned short *) (yuyv_image->data =
malloc (yuyv_image->size));
yuyv_image->palette = 0;
yuyv_image->palette_size = 0;
while ((count++) < rgb_image->pixels) {
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pixel_rgb_to_yuyv (rgb_ptr++, &yuyv);
if ((count & 1) == 0) /* Was == 0 */
memcpy (dest, ((void *) &yuyv) + 2, sizeof (short));
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else
memcpy (dest, (void *) &yuyv, sizeof (short));
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dest++;
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}
#ifdef ENABLE_ASCII_BANNERS
printlogo_yuyv (yuyv_image->data, yuyv_image->width,
yuyv_image->height);
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#endif
return 0;
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}
int image_save_header (image_t * image, char *filename, char *varname)
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{
FILE *file = fopen (filename, "w");
char app[256], str[256] = "", def_name[64];
int count = image->size, col = 0;
unsigned char *dataptr = image->data;
if (file == NULL)
return -1;
/* Author information */
fprintf (file,
"/*\n * Generated by EasyLogo, (C) 2000 by Paolo Scaffardi\n *\n");
fprintf (file,
" * To use this, include it and call: easylogo_plot(screen,&%s, width,x,y)\n *\n",
varname);
fprintf (file,
" * Where:\t'screen'\tis the pointer to the frame buffer\n");
fprintf (file, " *\t\t'width'\tis the screen width\n");
fprintf (file, " *\t\t'x'\t\tis the horizontal position\n");
fprintf (file, " *\t\t'y'\t\tis the vertical position\n */\n\n");
/* Headers */
fprintf (file, "#include <video_easylogo.h>\n\n");
/* Macros */
strcpy (def_name, varname);
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StringUpperCase (def_name);
fprintf (file, "#define DEF_%s_WIDTH\t\t%d\n", def_name,
image->width);
fprintf (file, "#define DEF_%s_HEIGHT\t\t%d\n", def_name,
image->height);
fprintf (file, "#define DEF_%s_PIXELS\t\t%d\n", def_name,
image->pixels);
fprintf (file, "#define DEF_%s_BPP\t\t%d\n", def_name, image->bpp);
fprintf (file, "#define DEF_%s_PIXEL_SIZE\t%d\n", def_name,
image->pixel_size);
fprintf (file, "#define DEF_%s_SIZE\t\t%d\n\n", def_name,
image->size);
/* Declaration */
fprintf (file, "unsigned char DEF_%s_DATA[DEF_%s_SIZE] = {\n",
def_name, def_name);
/* Data */
while (count)
switch (col) {
case 0:
sprintf (str, " 0x%02x", *dataptr++);
col++;
count--;
break;
case 16:
fprintf (file, "%s", str);
if (count > 0)
fprintf (file, ",");
fprintf (file, "\n");
col = 0;
break;
default:
strcpy (app, str);
sprintf (str, "%s, 0x%02x", app, *dataptr++);
col++;
count--;
break;
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}
if (col)
fprintf (file, "%s\n", str);
/* End of declaration */
fprintf (file, "};\n\n");
/* Variable */
fprintf (file, "fastimage_t %s = {\n", varname);
fprintf (file, " DEF_%s_DATA,\n", def_name);
fprintf (file, " DEF_%s_WIDTH,\n", def_name);
fprintf (file, " DEF_%s_HEIGHT,\n", def_name);
fprintf (file, " DEF_%s_BPP,\n", def_name);
fprintf (file, " DEF_%s_PIXEL_SIZE,\n", def_name);
fprintf (file, " DEF_%s_SIZE\n};\n", def_name);
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fclose (file);
return 0;
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}
#define DEF_FILELEN 256
static void usage (int exit_status)
{
puts (
"EasyLogo 1.0 (C) 2000 by Paolo Scaffardi\n"
"\n"
"Syntax: easylogo [options] inputfile [outputvar [outputfile]]\n"
"\n"
"Options:\n"
" -r Output RGB instead of YUYV\n"
" -h Help output\n"
"\n"
"Where: 'inputfile' is the TGA image to load\n"
" 'outputvar' is the variable name to create\n"
" 'outputfile' is the output header file (default is 'inputfile.h')"
);
exit (exit_status);
}
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int main (int argc, char *argv[])
{
int c;
bool use_rgb = false;
char inputfile[DEF_FILELEN],
outputfile[DEF_FILELEN], varname[DEF_FILELEN];
image_t rgb_logo, yuyv_logo;
while ((c = getopt(argc, argv, "hr")) > 0) {
switch (c) {
case 'h':
usage (0);
break;
case 'r':
use_rgb = true;
puts ("Using 24-bit RGB Output Fromat");
break;
default:
usage (1);
break;
}
}
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c = argc - optind;
if (c > 4 || c < 1)
usage (1);
strcpy (inputfile, argv[optind]);
if (c > 1)
strcpy (varname, argv[optind + 1]);
else {
/* transform "input.tga" to just "input" */
char *dot;
strcpy (varname, inputfile);
dot = strchr (varname, '.');
if (dot)
*dot = '\0';
}
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if (c > 2)
strcpy (outputfile, argv[optind + 2]);
else {
/* just append ".h" to input file name */
strcpy (outputfile, inputfile);
strcat (outputfile, ".h");
}
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/* Make sure the output is sent as soon as we printf() */
setbuf(stdout, NULL);
printf ("Doing '%s' (%s) from '%s'...",
outputfile, varname, inputfile);
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/* Import TGA logo */
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printf ("L");
if (image_load_tga (&rgb_logo, inputfile) < 0) {
printf ("input file not found!\n");
exit (1);
}
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/* Convert it to YUYV format if wanted */
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if (!use_rgb) {
printf ("C");
image_rgb_to_yuyv (&rgb_logo, &yuyv_logo);
}
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/* Save it into a header format */
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printf ("S");
image_save_header (use_rgb ? &rgb_logo : &yuyv_logo, outputfile, varname);
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/* Free original image and copy */
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image_free (&rgb_logo);
if (!use_rgb)
image_free (&yuyv_logo);
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printf ("\n");
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return 0;
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}